摘要
本文研究了不同温度对甲烷磺酸体系电沉积制备PbO_(2)-Ti电极晶型的影响,对于揭示电沉积动力学机制、优化晶体形貌调控、提升镀层功能特性具有重要理论价值。利用SEM、XRD和XPS分析了电极的表面形貌、晶体结构和元素组成,同时与传统硝酸体系电沉积制备PbO_(2)-Ti电极性能进行了对比。结果表明,随着电沉积温度的升高,甲烷磺酸体系制备的PbO_(2)-Ti电极易形成α-PbO_(2),但是温度高于80℃,更易形成β-PbO_(2)。通过电化学性能测试、强化寿命测试和运行槽电压数据可知,最优甲烷磺酸体系电沉积温度为70℃,电沉积电流密度600 mA·cm^(-2),甲烷磺酸体系电沉积制备的PbO_(2)-Ti电极性能优于传统硝酸体系,其中析氧电位减少了7.14%,强化寿命延长了53.8%,槽电压降低显著。
In this paper,the effect of different temperatures on the crystal structure of PbO_(2)-Ti electrode in mesylate solution was studied,which has important theoretical value for revealing the electrodeposition kinetics mechanism,optimizing the crystal morphology regulation and improving the functional properties of the coating.The surface morphology,crystal structure and element composition of the electrodes was analyzed by scanning electron microscopy(SEM),X-ray diffraction(XRD)and X-ray photoelectron spectroscopy(XPS),and the performance of PbO_(2)-Ti electrode prepared by traditional nitric acid solution was compared.The results show that with the increasing of electrodeposition temperature,PbO_(2)-Ti electrode prepared by methanesulfonic acid solution is more likely to formα-PbO_(2),but when the temperature is higher than 80℃,it is more likely to form β-PbO_(2).According to the electrochemical performance test,accelerated lifetime test and operating voltage data,The optimal methanesulfonic acid system electrodeposition temperature is 70℃,current density is 600 mA·cm^(-2),it can be found that the performance of PO_(2)-Ti electrode prepared by methanesulfonic acid solution is better than traditional nitric acid solution,in which the oxygen evolution potential decreased by 7.14%,the accelerated lifetime is extended by 53.8%,and the voltage is significantly reduced.
作者
韦震
康轩齐
武佳
刘康
许双文
徐尚元
万江凯
任鹏
贾波
冯庆
WEI Zhen;KANG Xuan-qi;WU Jia;LIU Kang;XU Shuang-wen;XU Shang-yuan;WAN Jiang-kai;REN Peng;JIA Bo;FENG Qing(Xi'an Taijin New Energy&Materials Sci-Tech Co.,Ltd.,Xi'an 710016,China)
出处
《化学研究与应用》
2025年第9期2805-2809,共5页
Chemical Research and Application
关键词
甲烷磺酸体系
PbO_(2)-Ti电极
晶型
硝酸体系
methanesulfonic acid solution
PbO_(2)-Ti electrode
crystal structure
nitric acid solution
作者简介
通讯作者:冯庆(1981-),男,教授级高级工程师,主要从事钛基复合电极材料研发、电解成套装备研制及电子玻璃封装材料开发工作。Email:wz18729483637@126.com。
